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Building and launching a mars rover is a good idea because overtime our planet is getting more and more polluted and populated. unless change happens soon we are going to migrate to a different plant. since mars is a perfect destination to migrate to, we can try to examine what the plants surface looks like. the rover will look for water and early signs of life. early signs of life will show that the planet is liveable. this rover has a helicopter to scan for life and other new materials. all of these materials will help to settle there. settling there will take some time but if we take the small steps as launching rovers to explore the surface